Frictional behavior and wear resistance performance of gradient cermet composite tool materials sliding against hard materials

被引：27
作者：
Ji, Wenbin [1 ,2 ]
Zou, Bin [1 ,2 ]
Liu, Yanan [1 ,2 ]
Huang, Changming [1 ,2 ]
Guo, Peng [1 ,2 ]
机构：
[1] Shandong Univ, Sch Mech Engn, Ctr Adv Jet Engn Technol CaJET, 17923 Jing Shi Rd, Jinan 250061, Peoples R China
[2] Shandong Univ, Key Lab High Efficiency & Clean Mech Mfg, Minist Educ, Jinan, Shandong, Peoples R China
来源：
CERAMICS INTERNATIONAL | 2017年 / 43卷 / 10期
基金：
中国国家自然科学基金;
关键词：
Gradient cermet; Wear resistance; Friction coefficient; Wear rate; TICN-BASED CERMETS; MECHANICAL-PROPERTIES; MICROSTRUCTURE; CONTACT; SPEED; WC;
D O I：
10.1016/j.ceramint.2017.03.096
中图分类号：
TQ174 [陶瓷工业]; TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
Gradient cermet composites possessing high surface hardness, flexural strength and interface bonding strength were fabricated using vacuum hot-pressing sintering. Ball-on-disk tests were performed to investigate the tribological properties of the gradient cermet composites against 440 C stainless steel, Al2O3 and Si3N4 balls at different sliding speed and load in comparison with traditional Ti(C,N) cermets. The tribological behavior was characterized in terms of friction coefficient and wear rate. The results showed that friction coefficient was significantly dependent on the sliding speed and load when sliding against Al2O3 and Si3N4. However, there was no obvious relation between them during sliding against 440 C stainless steel due to the formation of metal adhesive layer. Gradient cermet composites exhibited a higher friction coefficient but lower wear rate than traditional Ti(C,N) cermets. The main wear mechanism of gradient cermet composites was adhesion wear during sliding against 440 C stainless steel, while abrasion wear was the predominant mechanism during sliding against Al2O3 and Si3N4. It was expected that gradient cermet composites would be excellent candidates for cutting tool materials.
引用
收藏
页码：7816 / 7826
页数：11
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